The resolution, H. RES. 264, requests that the President deliver specific documents to the House of Representatives. These documents pertain to the security clearances of Elon Musk and other individuals associated with the United States Department of Government Efficiency...
Simple Explanation
This resolution asks the President to share some secret papers with the House of Representatives about the people, including Elon Musk, who have special permissions to see important government secrets. They want to know how these people were checked and approved to have these permissions.